Cleansing composition

Abstract

The present invention provides a cleansing composition for the skin or hair, which contains, together with (A) a sulfate type anionic surfactant and (B) an N-acylalanine or a salt thereof, at least one kind of compound selected from (C) an amphoteric surfactant, (D) a cationic polymer, (E) a silicone compound and (F) an oily material, wherein the mixing ratio of (A) and (B) of (A)/(B)=99/1-70/30 (wt %) and the concentration of ingredient (A) or (C) is the highest of all the surfactant components in the composition.

1 . A cleansing composition, which comprises:
 (A) a sulfate anionic surfactant which is an alkyl sulfate selected from the group consisting of an ester salt of a straight chain saturated alcohol having 8 to 22 carbon atoms and sulfuric acid, an ester salt of a straight chain unsaturated alcohol having 8 to 22 carbon atoms and sulfuric acid, an ester salt of a branched chain saturated alcohol having 8 to 22 carbon atoms and sulfuric acid, and an ester salt of a branched chain unsaturated alcohol having 8 to 22 carbon atoms and sulfuric acid, wherein said alkyl sulfate is optionally substituted with alkyleneoxide to form an ether sulfate,   (B) an N-acyl-α-alanine represented by the formula (I):   
       
         
           
           
               
               
           
         
         wherein R is a saturated or unsaturated acyl group having 8 to 26 carbon atoms, or a salt thereof, and 
         (E) a silicone compound, 
         wherein the mixing ratio of (A) and (B) is (A)/(B)=99/1-70/30 (wt %), and the concentration of (A) is the highest of all the surfactant ingredients in the composition. 
       
     
     
         2 . A cleansing composition, which is obtained by adding (G) a fatty acid or a salt thereof to a cleansing compositions of  claim 1 . 
     
     
         3 . The cleansing composition of  claim 1 , wherein (B) an N-acyl-α-alanine or a salt thereof is an N-acyl-L-alanine or a salt thereof. 
     
     
         4 . The cleansing composition of  claim 1 , which is a liquid cleansing composition. 
     
     
         5 . The cleansing composition of  claim 1 , which further comprises one or more ingredients selected from the group consisting of:
 (C) an amphoteric surfactant,   (D) a cationic polymer,   (F) an oily material,   wherein concentration of (A) or (C) is the highest of all the surfactant ingredients in the composition.   
     
     
         6 . A cleansing composition, which is obtained by adding (G) a fatty acid or a salt thereof to a cleansing compositions of  claim 5 . 
     
     
         7 . The cleansing composition of  claim 5 , wherein (B) an N-acyl-α-alanine or a salt thereof is an N-acyl-L-alanine or a salt thereof. 
     
     
         8 . The cleansing composition of  claim 5 , which is a liquid cleansing composition. 
     
     
         9 . The cleansing composition of  claim 1 , wherein the mixing ratio of (A) and (B) is (A)/(B)=99/1-80/20 (wt % ratio). 
     
     
         10 . The cleansing composition of  claim 1 , wherein the mixing ratio of (A) and (B) is (A)/(B)=95/5-80/20 (wt % ratio). 
     
     
         11 . The cleansing composition of  claim 1 , wherein the amount of (B) ranges from 0.03 to 10 wt % of the whole composition. 
     
     
         12 . The cleansing composition of  claim 1 , wherein the amount of (B) ranges from 0.1 to 5 wt % of the whole composition. 
     
     
         13 . The cleansing composition of  claim 1 , wherein the amount of (B) ranges from 0.1 to 3 wt % of the whole composition. 
     
     
         14 . The cleansing composition of  claim 1 , wherein (E) is a silicone compound selected from the group consisting of silicone resin, methylphenylpolysiloxane, methylpolysiloxane, octamethylcyclotetrasiloxane, dimethylsiloxane methyl(polyoxyethylene)siloxane copolymer, decamethylcyclopentasiloxane, dimethylsiloxane methyl(polyoxyethylene•polyoxypropylene)siloxane copolymer, methylhydrogenepolysiloxane, dodecamethylcyclohexasiloxane, methyl polycyclosiloxane, dimethylsiloxane•methyl stearyxysiloxane copolymer, methyl polysiloxane emulsion, octamethyl trisiloxane, cyclic silicone resin, high polymerization methylpolysiloxane, tetradecamethylhexasiloxane, trimethylsiloxysilicate, polyether modified organopolysiloxane, fluoroalkylpolyoxyalkylene co-modified organopolysiloxane, alkyl modified organopolysiloxane, terminal modified organopolysiloxane, fluorine modified organopolysiloxane, amodimethicone, amino modified organopolysiloxane, silicone gel, acrylic silicone, trimethylsiloxysilicate, and silicone RTV rubber. 
     
     
         15 . The cleansing composition of  claim 1 , wherein (E) is a silicone compound selected from the group consisting of methylpolysiloxane, high polymerization methylpolysiloxane, decamethylcyclopentasiloxane and amodimethicone. 
     
     
         16 . The cleansing composition of  claim 1 , wherein the amount of (E) ranges from 0.01 to 20 wt % of the whole composition. 
     
     
         17 . The cleansing composition of  claim 1 , wherein the amount of (E) ranges from 0.1 to 10 wt % of the whole composition. 
     
     
         18 . The cleansing composition of  claim 1 , wherein the amount of (E) ranges from 0.1 to 3 wt % of the whole composition. 
     
     
         19 . The cleansing composition of  claim 1 , wherein said cleansing composition is in the form of a makeup removing agent. 
     
     
         20 . The cleansing composition of  claim 1 , which further comprises:
 (C) an amphoteric surfactant,   wherein the concentration of (A) or (C) is the highest of all the surfactant ingredients in the composition.   
     
     
         21 . The cleansing composition of  claim 1 , which further comprises:
 (D) a cationic polymer.   
     
     
         22 . The cleansing composition of  claim 1 , which further comprises:
 (F) an oily material.   
     
     
         23 . The cleansing composition of  claim 1 , wherein (A) is an alkyl sulfate surfactant selected from the group consisting of lauryl sulfate, myristyl sulfate and oleyl sulfate, wherein said alkyl sulfate is optionally substituted with alkyleneoxide to form an ether sulfate. 
     
     
         24 . The cleansing composition of  claim 23 , wherein the alkyleneoxide is polyoxyethylene. 
     
     
         25 . The cleansing composition of  claim 1 , wherein R of (B) the N-acyl-α-alanine is selected from the group consisting of capryloyl, caprinoyl, lauroyl, myristoyl, palmitoyl, stearoyl and oleoyl. 
     
     
         26 . The cleansing composition of  claim 1 , wherein the acyl group of (B) the N-acyl-α-alanine is derived from a naturally obtained mixed fatty acid selected from the group consisting of coconut oil fatty acid, tallow fatty acid, hydrogenated tallow fatty acid, castor oil fatty acid, olive oil fatty acid and palm oil fatty acid. 
     
     
         27 . The cleansing composition of  claim 1 , wherein (E) is a silicone compound selected from the group consisting of methylpolysiloxane and modified methylpolysiloxane compounds. 
     
     
         28 . The cleansing composition of  claim 27 , wherein (A) is polyoxyethylene lauryl ether sulfate and (B) is N-cocyl-α-alanine or a salt thereof. 
     
     
         29 . A method of cleaning a body surface in a subject in need thereof comprising contacting the surface in need of such treatment with a cleansing composition of  claim 15 , lathering said cleansing composition, rinsing said composition from said surface, and drying said surface. 
     
     
         30 . The method of  claim 29 , wherein said surface in need of such treatment is skin. 
     
     
         31 . The method of  claim 29 , wherein said surface in need of such treatment is hair. 
     
     
         32 . A method of cleaning a body surface in a subject in need thereof comprising contacting the surface in need of such treatment with a cleansing composition of  claim 29 , lathering said cleansing composition, rinsing said composition from said surface, and drying said surface. 
     
     
         33 . The method of  claim 32 , wherein said surface in need of such treatment is skin. 
     
     
         34 . The method of  claim 32 , wherein said surface in need of such treatment is hair.